mirror of
https://github.com/fish-shell/fish-shell
synced 2024-12-27 21:33:09 +00:00
cc49042294
When a variable is parsed as being empty, parse out the slice and
validate the indexes anyway, behaving for slicing purposes as if the
variable had a single empty value.
Besides providing errors when expected, this also fixes the following:
set -l foo
echo "$foo[1]"
This used to print "[1]", now it properly prints nothing.
76 lines
1 KiB
Text
76 lines
1 KiB
Text
# Test expansion of variables
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function show --description 'Prints argument count followed by arguments'
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echo (count $argv) $argv
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end
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set -l foo
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show "$foo"
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show $foo
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show "prefix$foo"
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show prefix$foo
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show "$$foo"
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show $$foo
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show "prefix$$foo"
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show prefix$$foo
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set -l foo ''
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show "$foo"
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show $foo
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show "prefix$foo"
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show prefix$foo
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show "$$foo"
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show $$foo
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show "prefix$$foo"
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show prefix$$foo
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set -l foo bar
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set -l bar
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show "$$foo"
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show $$foo
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show "prefix$$foo"
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show prefix$$foo
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set -l bar baz
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show "$$foo"
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show $$foo
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show "prefix$$foo"
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show prefix$$foo
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set -l bar baz quux
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show "$$foo"
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show $$foo
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show "prefix$$foo"
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show prefix$$foo
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set -l foo bar fooer fooest
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set -l fooer
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set -l fooest
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show "$$foo"
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show $$foo
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show "prefix$$foo"
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show prefix$$foo
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set -l fooer ''
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show $$foo
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show prefix$$foo
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set -l foo bar '' fooest
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show "$$foo"
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show $$foo
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show "prefix$$foo"
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show prefix$$foo
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set -l foo
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show "$foo[1]"
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show $foo[1]
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show "$foo[-1]"
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show $foo[-1]
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show "$foo[2]"
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show $foo[2]
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show "$foo[1 2]"
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show $foo[1 2]
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show "$foo[2 1]"
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show $foo[2 1]
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